CN101340726A - Method and system for determining communication mode in a communication system - Google Patents
Method and system for determining communication mode in a communication system Download PDFInfo
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- CN101340726A CN101340726A CNA2008101356516A CN200810135651A CN101340726A CN 101340726 A CN101340726 A CN 101340726A CN A2008101356516 A CNA2008101356516 A CN A2008101356516A CN 200810135651 A CN200810135651 A CN 200810135651A CN 101340726 A CN101340726 A CN 101340726A
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- 238000004891 communication Methods 0.000 title claims abstract description 145
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000010267 cellular communication Effects 0.000 claims abstract description 60
- 238000013468 resource allocation Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/72502—Cordless telephones with one base station connected to a single line
- H04M1/72516—Cordless telephones with one base station connected to a single line with means for out-of-range alerting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
A method and system for determining a communication mode in a communication system are provided. The system and method include determining whether a first MS and a second MS are located within a preset area where P2P communications are available, estimating a first expected performance that can be achieved when the first and second MSs operate in a cellular communication mode, estimating a second expected performance that can be achieved when the first and second MSs operate in a P2P communication mode if the first and second MSs are located within the predetermined area, and selecting one of the cellular communication mode and the P2P communication mode as a communication mode between the first and second MSs by comparing the first expected performance with the second expected performance.
Description
Technical field
The present invention relates generally to be used for determining the method and system of communication pattern.More specifically, the present invention relates to be used for determining the method and system of the communication pattern between the mobile radio station (MS).
Background technology
In communication system, exist two kinds to be used for transmitting MS (that is source MS (MS_S)) and receiving the communication pattern of communicating by letter between the MS (that is purpose MS (MS_D)) substantially.These patterns are cellular communication pattern and equity (P2P) communication pattern.In the cellular communication pattern, MS_S communicates by letter with MS_D via base station (BS), and in the P2P communication pattern, MS_S and MS_D direct communication, and need not the help of BS.
With reference to figure 1, legacy cellular communication pattern and P2P communication pattern will be described below.
Fig. 1 illustrates operation of cellular communication pattern and the operation of P2P communication pattern in the legacy communications system.
With reference to figure 1, communication system comprises BS 101, source MS 103 (MS_S), the first purpose MS 105 (MS_D1) and the second purpose MS 107 (MS_D2).
In the illustrated example of Fig. 1, MS_S communicates by letter with MS_D2 in the cellular communication pattern.MS_S uses the reason of honeycomb mode to be because MS_D2 is positioned at outside the ultimate range of the signal that MS_S transmits.MS_D1 and the known ultimate range of MS_D2 are the MS_S distances of preferably utilizing the P2P communication pattern to communicate by letter with MS_D2 wherein.For example, the ultimate range that presets of this communication system can be expressed as d.In the example of Fig. 1, the distance between MS_S and the MS_D2 is than the big distance, delta of d.Because the total distance between MS_S and the MS_D2 is the d+ Δ, so MS_D2 is not positioned among the d and MS_S and MS_D2 use cellular communication pattern.On the contrary, owing to MS_D1 is positioned at apart among the d, so MS_S communicates by letter with MS_D1 in the P2P communication pattern.
Yet, even MS_D1 among distance d, does not communicate by letter with P2P between the MS_D1 if there is resource to can be used for MS_S, not reaching an agreement if perhaps also between MS_S and MS_D1, communicate by letter at P2P, MS_S utilizes the cellular communication pattern to communicate by letter with MS_D1.
In order to promote MS_S to communicate by letter, as mentioned above, should carry out the mutual agreement of P2P communication, and should finish the preparation of P2P communication with P2P between the MS_D.P2P communication is prepared to be actually MS_S and is set to the transmission of P2P signal, and MS_D is set to the reception of P2P signal.
Therefore, when MS will be when another MS communicates by letter, they must stand a series of processing at every turn, comprise that communication pattern is selected and the mutual agreement of communication pattern.These are handled for MS user is consuming time and inconvenient.In addition, even under the preferable situation of P2P communication pattern, they can not operated in the P2P communication pattern under the situation of the agreement of not reaching the P2P communication pattern.
Summary of the invention
An aspect of of the present present invention is to solve the problems referred to above and/or shortcoming at least, and following at least advantage is provided.Therefore, an aspect of of the present present invention provides a kind of method and system, is used for the communication pattern between the automatically definite MS of communication system, and operates MS according to determined communication pattern, and need not to carry out the agreement of the communication pattern between them.
The method of the definite communication pattern in a kind of communication system is provided according to an aspect of the present invention.This method may further comprise the steps: determine whether a MS and the 2nd MS are arranged in wherein the P2P available preset regions of communicating by letter, first estimated performance that estimation can realize when described first and second MS operate with the cellular communication pattern, if described first and second MS are arranged in this preset regions, then estimate second estimated performance when described first and second MS operate with the P2P communication pattern, can realize, and, select one of cellular communication pattern and P2P communication pattern as the communication pattern between described first and second MS by more described first estimated performance and second estimated performance.
The system of the definite communication pattern in a kind of communication system is provided according to a further aspect in the invention.This system determines whether a MS and the 2nd MS are arranged in wherein the P2P available preset regions of communicating by letter, first estimated performance that estimation can realize when described first and second MS operate with the cellular communication pattern, if described first and second MS are arranged in this preset regions, then estimate second estimated performance when described first and second MS operate with the P2P communication pattern, can realize, and, select one of cellular communication pattern and P2P communication pattern as the communication pattern between described first and second MS by more described first estimated performance and second estimated performance.
Disclose the following detailed description of example embodiment of the present invention in conjunction with the drawings, it is obvious that others of the present invention, advantage and feature will become to those skilled in the art.
Description of drawings
According to the detailed description of next carrying out in conjunction with the accompanying drawings, the above and other aspect of some example embodiment of the present invention, feature and advantage will become more obvious, wherein:
Fig. 1 illustrates the legacy communications system that utilizes cellular communication pattern and P2P communication pattern;
Fig. 2 illustrates to determine the figure of signal flow of the operation of the communication pattern between MS_S and the MS_D by MS_S in the communication system of the example embodiment according to the present invention;
Fig. 3 illustrates to determine the flow chart of the operation of the communication pattern between MS_S and the MS_D by MS_S in the communication system of the example embodiment according to the present invention;
Fig. 4 illustrates to determine the figure of signal flow of the operation of the communication pattern between the MS in the service area of BS by BS in the communication system of the example embodiment according to the present invention; With
Fig. 5 illustrates to determine the flow chart of the operation of the communication pattern between the MS in the service area of BS by BS in the communication system of the example embodiment according to the present invention.
In the drawings, identical Reference numeral will be understood that to represent all the time components identical, feature and structure.
Embodiment
Provide following description with reference to the accompanying drawings, with the example embodiment of the present invention that helps complete understanding to limit by claim and equivalence thereof.It comprises the various specific detail of help understanding, but will to be counted as only be exemplary to these details.Therefore, persons of ordinary skill in the art will recognize that the various modifications and changes that to carry out the embodiments described herein, and do not depart from the scope of the present invention and spirit.And, the description of having omitted known function and structure for clarity and conciseness.
Example embodiment of the present invention provides a kind of method and system, is used for the best mode between the automatic MS of selection of communication system, and realizes selected communication pattern between MS, and need not to carry out the agreement of the communication pattern between the MS.
Will be early than for description of the invention for the description of the communication pattern that between MS, communicates.Communication pattern is categorized as cellular communication pattern and P2P communication pattern substantially.In the cellular communication pattern, transmit MS and (that is, MS_S) (that is, MS_D) communicate by letter, and in the P2P communication pattern, MS_S directly communicates by letter with MS_D, and need not the help of BS via BS and reception MS.
The operation that MS_S in the communication system of the example embodiment according to the present invention selects the communication pattern of communicating by letter with MS_D is described referring now to Fig. 2 and 3.
Fig. 2 illustrates to determine the figure of signal flow of the operation of the communication pattern between MS_S and the MS_D by MS_S in the communication system of the example embodiment according to the present invention.
With reference to figure 2, communication system comprises source MS (MS_S 201), purpose MS (MS_D 203) and BS 205.
In case generate the transmission data of pointing to MS_D 203, the communication request signal that MS_S 201 just communicates by letter with MS_D 203 to the BS205 request of transmitting in step 207.BS 205 determines in step 209 whether MS_S 201 and MS_D 203 are positioned at same sub-district.If MS_S 201 and MS_D 203 are positioned at different districts, then BS 205 selects the cellular communication pattern to be used for communication between MS_S201 and MS_D 203 in step 211, and in step 213, transmit the resource allocation information that is used for cellular communication pattern operation (that is, being used for cellular communication) to MS_S 201.In step 229, MS_S201 operates with the cellular communication pattern for MS_D 203 according to the resource allocation information that is received.
On the other hand, if MS_S and MS_D 203 in same sub-district, then BS 205 transmits control signals to MS_D 203 in step 215.This control signal order MS_D 203 utilizes predetermined resource and prearranged signals pattern to come to transmit the reference signal that is used for P2P communication pattern operation (that is P2P communication) to MS_S 201 at the fixed time.BS 205 also transmits the relevant information of reference signal of communicating by letter with P2P to MS_S 201 in step 217, that is, and and about the information of the scheduled time, resource and signal pattern.
In the demonstration of Fig. 2 realized, MS_S 201 was initial and do not know to be used for the relevant information with reference signal of carrying out with MS_D 203 that P2P signal post needs.Yet MS_S 201 can obtain the information relevant with reference signal that is used for P2P communication from the broadcast message that receives from BS 205.In this case, skips steps 217.And BS 205 may not need the MS_S 201 in communication system to transmit the information of relevant fixed value, if this fixed value information is included in the words in the information relevant with the reference signal information of the scheduled time, resource and signal pattern (that is, about).
MS_S 201 receives the reference signal that is used for cellular communication from BS 205, and estimates the estimated performance (being called the cellular communication estimated performance) that carries out cellular communication with MS_D 203 in step 219.This cellular communication reference signal can be preamble, pilot signal, data-signal etc.MS_S 201 comes the estimated expected performance by in for example service quality (QoS) grade, data rate, communication rate, transmission/received power level, message capacity, signal to noise ratio (snr), frame error rate (FER), bit error rate (BER) (BER) and the element error rate (SER) at least one.Although in step 219, estimate the cellular communication estimated performance in this example, can know to be understood that, can determine in step 225 that any time before the communication pattern estimates.
MS_D 203 according to the control signal that receives from BS 205, utilizes predetermined resource and prearranged signals pattern at the fixed time in step 221, come to transmit P2P communication reference signal to MS_S 201.In case receive P2P communication reference signal, MS_S 201 just utilizes the signal that is received to estimate the estimated performance of P2P communication (being called P2P communication estimated performance) in step 223.Can consider the estimation of P2P communication estimated performance according to dual mode at least.A kind of is to estimate the P2P estimated performance of communicating by letter synchronously by obtaining based on the information relevant with reference signal that receives in the P2P communication reference signal that receives in the step 221 and the step 217, and another kind is to estimate the P2P estimated performance of communicating by letter by measuring the communicate by letter signal level of reference signal of P2P.
Based on the estimation of carrying out in step 219 and 223, MS_S judges the communication pattern for MS_D203 in step 225.In a demonstration realizes, deduct the P2P communication estimated performance of estimating in the step 223 in the cellular communication estimated performance of MS_S 201 by estimation from step 219, and this difference and threshold value are made comparisons, and carry out this judgement.This threshold value is the actual value that the taking of number, the communication resource, volume of transmitted data of the MS in the service coverage of characteristic, Fare Collection System, BS according to MS etc. determined.
More specifically, if this difference is equal to or greater than this threshold value, then MS_S 201 selects the cellular communication pattern in step 225, and in step 229 with the operation of the cellular communication pattern of MS_D 203.If this difference is lower than this threshold value, then MS_S 201 selects the P2P communication pattern in step 225, and communicates by letter with MS_D 203 with the P2P communication pattern in step 227.
Fig. 3 illustrates to determine the flow chart of the operation of the communication pattern between MS_S and the MS_D by MS_S in the communication system of the example embodiment according to the present invention.
With reference to figure 3, in case generate the transmission data of pointing to MS_D, the communication request signal that MS_S just communicates by letter with MS_D to the BS request of transmitting in step 301.In step 303, MS_S monitors whether it receives the resource allocation information that is used for cellular communication from BS.If MS_S has received this resource allocation information, then MS_S operates with the cellular communication pattern for MS_D in step 317.If MS_S does not also receive this resource allocation information, then it receives the relevant information of reference signal of communicating by letter with P2P from BS in step 305, and estimates that in step 307 the cellular communication estimated performance is with definite communication pattern.
In step 309, MS_S receives P2P communication reference signal from MS_D.Then, MS_S estimates P2P communication estimated performance in step 311.In demonstration realized, MS_S was by based on P2P communication reference signal with the information relevant with reference signal is obtained synchronously or by the communicate by letter signal level of reference signal of measurement P2P, estimate the P2P performance.
MS_S in step 313 to making comparisons by from the cellular communication estimated performance, deducting P2P communication difference and threshold value that estimated performance calculated.If this difference is equal to or greater than threshold value, then MS_S selects the cellular communication pattern to be used for communicating by letter with MS_D in step 317.If this difference is lower than this threshold value, then MS_S in step 315 with the operation of the P2P communication pattern of MS_D.
Judge be used for the communication pattern of communicating by letter that by estimating the cellular communication estimated performance estimated performance of communicating by letter with P2P it only is a Demonstration Application although described under the illustrated situation of Fig. 3 MS_S above with MS_D.In another example embodiment, MS_S is to the BS feedback cellular communication estimated performance estimated performance of communicate by letter with P2P, and BS is responsible for the communication pattern between definite MS_S and the MS_D.
With reference to Figure 4 and 5, the operation of the BS of the communication pattern between the MS in the service area that is used to judge BS (that is, the covering in the communication system is from the zone of the signal institute reach of BS) of the example embodiment according to the present invention will be described below.
Fig. 4 illustrates to determine the figure of signal flow of the operation of the communication pattern between the MS in the service area of BS by BS in the communication system of the example embodiment according to the present invention.
With reference to figure 4, communication system comprises source MS (MS_S 401), purpose MS (MS_D 403) and BS 405.For this example, suppose that MS_S and MS_D are in the service area of BS 405.
In case generate the transmission data of pointing to MS_D 403, the communication request signal that MS_S 401 just communicates by letter with MS_D 403 to the BS405 request of transmitting in step 407.In step 409 and 411, MS_S401 and MS_D 403 for example utilize the positional information getter of global positioning system (GPS) to locate they oneself, and their location information is sent to BS 405.In demonstration realizes, can be depending on system status and skips steps 409 and 411.That is, the place of MS_S 401 and MS_D 403 can before have been obtained by BS 405, and perhaps BS 405 can come to determine their place in a different manner.For example, the angle that BS 405 can be by estimating MS_S 401 and MS_D 403, from the intensity of the distance measuring signal of MS_S 401 and MS_D403 and the distance between MS_S 401 and the MS_D 403 is come dot information definitely.
BS 405 estimates the cellular communication estimated performance based on the location information of MS_S 401 that is received and MS_D 403 in step 413, and determines that in step 415 MS_S 401 and MS_D 403 are whether in preset regions.Although preset regions is depicted as same sub-district for illustrated purpose in example embodiment of the present invention, it also can be the service area of neighbor bss, i.e. the neighbor cell zone.In addition,, will know to be understood that although in illustrated example, in step 413, estimate the cellular communication estimated performance, can be in step 423 any time before illustrated definite communication pattern estimate.
If MS_S 401 and MS_D 403 are in different districts, then BS 405 is judged as the cellular communication pattern communication pattern between MS_S 401 and the MS_D 403 in step 417, and transmits the resource allocation information that is used for cellular communication to MS_S 401 in step 419.Thus, in step 427, MS_S 401 operates with the cellular communication pattern based on this resource allocation information.
On the contrary, if MS_S 401 and MS_D 403 are in same sub-district, then BS 405 utilizes in step 421 based on the MS_S 401 that location information calculated or that otherwise determine that receives in step 409 and 411 and the information of the distance between the MS_D 403, estimates P2P communication estimated performance.Then, 405 couples of BS make comparisons by deduct P2P communication difference and threshold value that estimated performance calculated from the cellular communication estimated performance, and judge the communication pattern between MS_S 401 and the MS_D 403 in step 423.More specifically, if this difference is equal to or greater than this threshold value, BS 405 selects the cellular communication pattern in step 423, and MS_S 401 communicates by letter with MS_D 403 with the cellular communication pattern in step 427.If this difference is lower than this threshold value, then BS 405 selects the P2P communication pattern in step 423, and MS_S 401 communicates by letter with MS_D 403 with the P2P communication pattern in step 425.
Fig. 5 illustrates to determine the flow chart of the operation of the communication pattern between the MS in the service area of BS by BS in the communication system of the example embodiment according to the present invention.
With reference to figure 5, in step 501, BS receives the communication request signal that request is communicated by letter with MS_D from MS_S.In step 503, BS receives location information from MS_S and MS_D, or otherwise obtains location information by estimating the distance between MS_S and the MS_D.In step 505, BS estimates the cellular communication estimated performance based on the location information of MS_S and MS_D.
BS determines that in step 507 MS_S and MS_D are whether in same sub-district.If MS_S and MS_D are in different districts, then BS is used for the resource allocation information of cellular communication to the MS_S transmission in step 515, and operates with the cellular communication pattern in step 517.
On the contrary, if MS_S and MS_D in same sub-district, then BS utilizes the information of the distance between relevant MS_S and the MS_D to estimate P2P communication estimated performance in step 509.Then, BS in step 511 to making comparisons by from the cellular communication estimated performance, deducting P2P communication difference and threshold value that estimated performance calculated.If this difference is lower than this threshold value, then BS operates with the P2P communication pattern in step 513.If this difference is equal to or greater than this threshold value, then BS operates with the cellular communication pattern in step 517.
Can know from the above description and find out that example embodiment of the present invention is determined the best mode between the MS automatically in communication system, operate MS with this best mode, and need not to carry out the agreement of best mode between MS.So the user can receive communication service more efficiently.
Although illustrate and described the present invention with reference to some example embodiment of the present invention, but it should be appreciated by those skilled in the art that, can carry out the various changes of form and details here, and not break away from the spirit and scope of the present invention that limit by claims and equivalence thereof.
Claims (26)
1. the method for the definite communication pattern in the communication system, this method may further comprise the steps:
Determine whether first mobile radio station (MS) and the 2nd MS are arranged in wherein equity (P2P) the available preset regions of communicating by letter;
When described first and second MS operate with the cellular communication pattern, estimate first estimated performance that they can be realized;
If described first and second MS are arranged in this preset regions, then when described first and second MS operate with the P2P communication pattern, estimate second estimated performance that they can be realized; With
By more described first estimated performance and second estimated performance, select one of cellular communication pattern and P2P communication pattern as the communication pattern between described first and second MS.
2. according to the process of claim 1 wherein that described first estimated performance and second estimated performance are to determine by in service quality (QoS) grade, data rate, communication rate, transmission/received power level, message capacity, signal to noise ratio (snr), frame error rate (FER), bit error rate (BER) (BER) and the element error rate (SER) at least one.
3. according to the process of claim 1 wherein that the step of described estimation first estimated performance comprises: utilize in preamble, pilot signal and the data-signal at least one to estimate described first estimated performance.
4. according to the process of claim 1 wherein that the step of described estimation second estimated performance comprises:
(BS) receives the information relevant with reference signal to the one MS from the base station, and the described information relevant with reference signal comprises the information of the relevant scheduled time, predetermined resource and prearranged signals pattern;
The one MS receives the predetermined resource of the scheduled time and the reference signal in the prearranged signals pattern from the 2nd MS; With
The one MS estimates this second estimated performance by obtaining synchronously based on described information relevant with reference signal and the reference signal that is received.
5. according to the process of claim 1 wherein that the step of described estimation second estimated performance comprises:
The one MS receives the predetermined resource of the scheduled time and the reference signal in the prearranged signals pattern from the 2nd MS; With
The one MS estimates this second estimated performance by measuring the signal level of this reference signal.
6. according to the process of claim 1 wherein that the step of one of described selection cellular communication pattern and P2P communication pattern comprises:
Come calculated difference by from first estimated performance, deducting second estimated performance; With
If this difference is equal to or greater than threshold value, then select the cellular communication pattern as the communication pattern between described first and second MS.
7. according to the process of claim 1 wherein that the step of one of described selection cellular communication pattern and P2P communication pattern comprises:
Come calculated difference by from first estimated performance, deducting second estimated performance; With
If this difference less than threshold value, then selects the P2P communication pattern as the communication pattern between described first and second MS.
8. according to the method for claim 6, wherein this threshold value comprise the MS in the service coverage of characteristic based on MS, Fare Collection System, base station number, the communication resource take and volume of transmitted data at least one and the actual value determined.
9. according to the method for claim 7, wherein this threshold value comprise the MS in the service coverage of characteristic based on MS, Fare Collection System, base station number, the communication resource take and volume of transmitted data at least one and the actual value determined.
10. according to the process of claim 1 wherein that this preset regions comprises the sub-district of base station and at least one in the neighbor cell.
11. method according to claim 1, it is further comprising the steps of: if a MS and the 2nd MS are not arranged in this preset regions, then base station selected cellular communication pattern is as the communication pattern between first and second MS, and transmits the resource allocation information that is used for the operation of cellular communication pattern to a MS.
12. method according to claim 1, also comprise by base station (BS) and obtain step about location information with the location information of relevant the 2nd MS of a MS, in wherein said first estimated performance and second estimated performance at least one is according to estimating that about the information of the distance between a described MS and the 2nd MS location information that described information about the distance between a described MS and the 2nd MS is based on relevant described first and second MS calculates by BS.
13., comprise that also a MS is to described first estimated performance of base station feedback and second estimated performance according to the method for claim 1.
14. the system of the definite communication pattern in the communication system is suitable for carrying out following operation, comprising:
Determine whether first mobile radio station (MS) and the 2nd MS are arranged in wherein equity (P2P) the available preset regions of communicating by letter;
When described first and second MS operate with the cellular communication pattern, estimate first estimated performance that they can be realized;
If described first and second MS are arranged in this preset regions, then when described first and second MS operate with the P2P communication pattern, estimate second estimated performance that they can be realized; With
By more described first estimated performance, second estimated performance, select one of cellular communication pattern and P2P communication pattern as the communication pattern between described first and second MS.
15. according to the system of claim 14, wherein said first estimated performance and second estimated performance are to determine by in service quality (QoS) grade, data rate, communication rate, transmission/received power level, message capacity, signal to noise ratio (snr), frame error rate (FER), bit error rate (BER) (BER) and the element error rate (SER) at least one.
16. according to the system of claim 14, wherein said estimation first estimated performance comprises: utilize in preamble, pilot signal and the data-signal at least one to estimate described first estimated performance.
17. system according to claim 14, wherein (BS) receives the information relevant with reference signal to a MS from the base station, the described information relevant with reference signal comprises the information of the relevant scheduled time, predetermined resource and prearranged signals pattern, the one MS receives the predetermined resource of the scheduled time and the reference signal in the prearranged signals pattern from the 2nd MS, and a MS estimates this second estimated performance by obtaining synchronously based on described information relevant with reference signal and the reference signal that is received.
18. according to the system of claim 14, wherein a MS receives the predetermined resource of the scheduled time and the reference signal in the prearranged signals pattern from the 2nd MS, and estimates this second estimated performance by the signal level of measuring this reference signal.
19. according to the system of claim 14, wherein come calculated difference by from first estimated performance, deducting second estimated performance, and if this difference be equal to or greater than threshold value, then select the cellular communication pattern as the communication pattern between described first and second MS.
20. according to the system of claim 14, wherein come calculated difference by from first estimated performance, deducting second estimated performance, and if this difference less than threshold value, then select the P2P communication pattern as the communication pattern between described first and second MS.
21. according to the system of claim 19, wherein this threshold value comprise the MS in the service area of characteristic based on MS, Fare Collection System, base station number, the communication resource take and volume of transmitted data at least one and the actual value determined.
22. according to the system of claim 20, wherein this threshold value comprise the MS in the service area of characteristic based on MS, Fare Collection System, base station number, the communication resource take and volume of transmitted data at least one and the actual value determined.
23. according to the system of claim 14, wherein this preset regions comprises the sub-district of base station and at least one in the neighbor cell.
24. system according to claim 14, if wherein a MS and the 2nd MS are not arranged in this preset regions, then base station selected cellular communication pattern is as the communication pattern between first and second MS, and transmits the resource allocation information that is used for the operation of cellular communication pattern to a MS.
25. system according to claim 14, wherein the base station obtains about the location information of a MS and the location information of relevant the 2nd MS, and according to estimate about the information of the distance between a described MS and the 2nd MS in described first estimated performance and second estimated performance at least one, the location information that described information about the distance between a described MS and the 2nd MS is based on relevant described first and second MS calculates.
26. according to the system of claim 14, wherein a MS is to described first estimated performance of base station feedback and second estimated performance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20070068190A KR101375481B1 (en) | 2007-07-06 | 2007-07-06 | Method and apparatus of deciding communication mode in a communication system |
| KR68190/07 | 2007-07-06 |
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| Publication Number | Publication Date |
|---|---|
| CN101340726A true CN101340726A (en) | 2009-01-07 |
| CN101340726B CN101340726B (en) | 2013-06-05 |
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| CN2008101356516A Expired - Fee Related CN101340726B (en) | 2007-07-06 | 2008-07-07 | Method and system for determining communication mode in a communication system |
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| EP (1) | EP2012480B1 (en) |
| JP (1) | JP4995153B2 (en) |
| KR (1) | KR101375481B1 (en) |
| CN (1) | CN101340726B (en) |
| ES (1) | ES2409979T3 (en) |
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- 2008-06-13 ES ES08158204T patent/ES2409979T3/en active Active
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- 2008-07-04 JP JP2008175707A patent/JP4995153B2/en not_active Expired - Fee Related
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| CN105723747B (en) * | 2013-11-13 | 2019-11-05 | 宝马股份公司 | Method and apparatus for monitoring the position or change in location of object |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20090011778A1 (en) | 2009-01-08 |
| CN101340726B (en) | 2013-06-05 |
| JP2009017559A (en) | 2009-01-22 |
| EP2012480A1 (en) | 2009-01-07 |
| ES2409979T3 (en) | 2013-06-28 |
| JP4995153B2 (en) | 2012-08-08 |
| US8660550B2 (en) | 2014-02-25 |
| KR101375481B1 (en) | 2014-03-19 |
| KR20090004185A (en) | 2009-01-12 |
| EP2012480B1 (en) | 2013-04-10 |
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